The Third Man

When Harry rescues a pretty woman from an attempted suicide, he is recognized as a post-war black-marketeer from Vienna. British intelligence asks his assistance to bring to justice another black-marketeer who uses children to explode land mines, thereby enabling him to cross behind the Iron Curtain with contraband.

When the body of Italian partisan who was last seen with Harry Lime during World War II is discovered at the end of a glacier, Harry returns to the Alps to face retribution from the agent's former compatriots.